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[TowerTalk] Dipole questions for the Liberal Arts Major

To: TowerTalk Reflector <>
Subject: [TowerTalk] Dipole questions for the Liberal Arts Major
From: Lee Buller <>
Date: Tue, 30 Aug 2005 11:53:35 -0700 (PDT)
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As I am sitting here waiting for a huge programto load
into the file server I started asking myself about the
simple dipole...or Inverted-Vee (I know there is a

Although my dipoles seem to radiate, I am somewhat
dismayed at the "bandwidth" of a typical 40 or 80
meter dipole.  Lets just talk 40 meters for now....

I was always instructed by an Elmer to cut the dipole
long and then use a tuner to tune the higher part of
the band.  Others have instructed me to cut the dipole
for about 100 Khz up from the bottom and get  as much
use as possible (not quite possible on 80 or 75
meters).  Another Elmer cautioned me to make sure I
solder the ends of the dipole because the wire wrapped
at the end acts as a inductor with a capacitor in the
loop of the wire around the insulator which would make
the resonate point different than calculated.  And yet
another told me to build a large wire diameter dipole
(out of RG58 or 59 or even RG8) to get some bandwidth.

So, with those comments that I have made...what do you
do when working with dipoles to get them to the point
where you get good bandwidth?

Lee Buller
Liberal Arts Major

Common sense is in short supply - get some and use it.
If you can't find any common sense, ask for help from 
somebody that has some common sense. - Lee Buller

See:  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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